Joyce Loebl & Co was founded in 1951 by Herbert Loebl and Robert Joyce. Initially a repair and callibration service for electrical items, the company quickly began to specialise in the production of high tech scientific equipment focussed mainly on the newly emerging medical laboratory analysis market. By 1953 Joyce-Loebl had collaborated With Dr Lindsay Molyneux to develop and market the Photodensitometer, with the firm later developing a range of medical laboratory equipment including the Chromograph, the Chromoscan, the Roboscan, the Microdesitometer and the Mecolab system.

In 1969 Joyce and Loebl sold all Joyce-Loebl equity to Technical Operations Inc, with Herbert Loebl remaining Chairman and Managing Director until 1970. Herbert Loebl remained on the Board of Technical Operations Inc until 1974.